"Lo! We have given you (O Muhammad) a signal victory, That Allah may forgive you of your sin that which is past and that which is to come..." - Surah Fath: 1-2.
He says: "He read it and repeated it". Mu'aawiyah bin Qurrah Radiyallahu 'Anhu (who is a narrator in the chain of this hadith) says: ''If I did not fear the people would surround me, I should have recited it in the same tone'"
Arabic : Book 44, Hadith 319